Chk Anwser to evaluate integral Problem

**Yogi_Bear_79** · August 25th 2006, 04:13 PM

Evaluate $\int \frac{x^3+4}{x^2} dx$

$\int(\frac{x^3+4}{x^2})dx = \frac{x^2}{2}-\frac{4}{x}+C$

Evaluate $\int 2cos^2x dx$

$\int 2cos^2x dx = x + cos(x)sin(x)$

**topsquark** · August 25th 2006, 04:43 PM

Originally Posted by Yogi_Bear_79

Evaluate $\int \frac{x^3+4}{x^2} dx$

$\int(\frac{x^3+4}{x^2})dx = \frac{x^2}{2}-\frac{4}{x}+C$

Evaluate $\int 2cos^2x dx$

$\int 2cos^2x dx = x + cos(x)sin(x)$

You can always check these by taking the derivative of your answer.

Both of these are correct. (With the comment that you need a constant of integration in your second answer.)

-Dan

Thread: Chk Anwser to evaluate integral Problem

LinkBack

Thread Tools

Display

Chk Anwser to evaluate integral Problems

Similar Math Help Forum Discussions

Use Cauchy's integral theorem for derivatives to evaluate the contour integral.

How to evaluate this integral problem..

Graph the region of integration and evaluate the double integral (integral from 0 to

Integral: Verify Anwser Please

Chk Anwser - How much work is done.....

Search Tags